Unlike pure tungsten, the Thoriated tungsten electrodes are suitable for specialty type AC welding (thin gauge aluminum or materials less than 060-in.), but they are exceptional for DC electrode negative or straight polarity on carbon and stainless steel, nickel and titanium applications.

In the process of production, thorium is evenly dispersed throughout Thoriated tungsten electrode and such evenness makes it possible for the electrode to maintain a sharpened edge of the ideal electrode shape for welding thin steel.